Chris Walzer
@cwalzer.bsky.social
Austrian 🇦🇹 in New York 🇺🇸
Exec. Director of Health | One Health Veterinarian | Univ. Prof Conservation Medicine | Opinions are my own.
Exec. Director of Health | One Health Veterinarian | Univ. Prof Conservation Medicine | Opinions are my own.
New piece in @Lancet Planetary Health 🌍🩺 tinyurl.com/nd44e6z4
We argue that equitable investment in the veterinary workforce is foundational to One Health and essential for pandemic prevention. Grateful to an outstanding group of co-authors for a truly collaborative effort.
#OneHealth
We argue that equitable investment in the veterinary workforce is foundational to One Health and essential for pandemic prevention. Grateful to an outstanding group of co-authors for a truly collaborative effort.
#OneHealth
December 23, 2025 at 5:05 PM
New piece in @Lancet Planetary Health 🌍🩺 tinyurl.com/nd44e6z4
We argue that equitable investment in the veterinary workforce is foundational to One Health and essential for pandemic prevention. Grateful to an outstanding group of co-authors for a truly collaborative effort.
#OneHealth
We argue that equitable investment in the veterinary workforce is foundational to One Health and essential for pandemic prevention. Grateful to an outstanding group of co-authors for a truly collaborative effort.
#OneHealth
Reposted by Chris Walzer
New preprint in Biorxiv: Mass mortality at Adélie penguin mega-colonies due to avian cholera confounds H5N1 highly pathogenic avian influenza surveillance in Antarctica. www.biorxiv.org/content/10.6...
December 17, 2025 at 6:23 AM
New preprint in Biorxiv: Mass mortality at Adélie penguin mega-colonies due to avian cholera confounds H5N1 highly pathogenic avian influenza surveillance in Antarctica. www.biorxiv.org/content/10.6...
Reposted by Chris Walzer
NSF is about to dismantle NCAR at Russell Vought's direction to protect the fossil fuel industry. It's hard to communicate just how much NCAR does, so let's take a look: I've never worked at NCAR, and I've worked with NCAR researchers once ever. What scientific discoveries has NCAR made possible? 👇
December 17, 2025 at 4:14 AM
NSF is about to dismantle NCAR at Russell Vought's direction to protect the fossil fuel industry. It's hard to communicate just how much NCAR does, so let's take a look: I've never worked at NCAR, and I've worked with NCAR researchers once ever. What scientific discoveries has NCAR made possible? 👇
Reposted by Chris Walzer
December 4, 2025 at 4:32 PM
Reposted by Chris Walzer
From @nytimes.com: Sharks and Rays Gain Sweeping Protections From Wildlife Trade
These represent the first time there’s been recognition that some sharks and rays are wildlife, just like elephants or rhinos, WCS’s @lukedavid301.bsky.social tells the paper.
🌎 www.nytimes.com/2025/12/02/s...
These represent the first time there’s been recognition that some sharks and rays are wildlife, just like elephants or rhinos, WCS’s @lukedavid301.bsky.social tells the paper.
🌎 www.nytimes.com/2025/12/02/s...
Sharks and Rays Gain Sweeping Protections From Wildlife Trade
www.nytimes.com
December 2, 2025 at 4:37 PM
From @nytimes.com: Sharks and Rays Gain Sweeping Protections From Wildlife Trade
These represent the first time there’s been recognition that some sharks and rays are wildlife, just like elephants or rhinos, WCS’s @lukedavid301.bsky.social tells the paper.
🌎 www.nytimes.com/2025/12/02/s...
These represent the first time there’s been recognition that some sharks and rays are wildlife, just like elephants or rhinos, WCS’s @lukedavid301.bsky.social tells the paper.
🌎 www.nytimes.com/2025/12/02/s...
Reposted by Chris Walzer
“We need to give species a fighting chance.”
WCS’s Susan Lieberman delivered an urgent call-to-action yesterday evening during the High-Level Dialogue on the eve of the opening of #CITESCOP20.
🌏 Read her remarks: bit.ly/3K3HYgv
WCS’s Susan Lieberman delivered an urgent call-to-action yesterday evening during the High-Level Dialogue on the eve of the opening of #CITESCOP20.
🌏 Read her remarks: bit.ly/3K3HYgv
November 24, 2025 at 1:00 PM
“We need to give species a fighting chance.”
WCS’s Susan Lieberman delivered an urgent call-to-action yesterday evening during the High-Level Dialogue on the eve of the opening of #CITESCOP20.
🌏 Read her remarks: bit.ly/3K3HYgv
WCS’s Susan Lieberman delivered an urgent call-to-action yesterday evening during the High-Level Dialogue on the eve of the opening of #CITESCOP20.
🌏 Read her remarks: bit.ly/3K3HYgv
Reposted by Chris Walzer
This #Thanksgiving season, we want to thank everyone who has made a difference for nature this year.
With your help, we’ve won critical protections for wildlife and wild places to benefit us all.
🌎 Check out our new 2025 #WCSImpact Report: www.wcs.org/about-us/imp...
With your help, we’ve won critical protections for wildlife and wild places to benefit us all.
🌎 Check out our new 2025 #WCSImpact Report: www.wcs.org/about-us/imp...
November 24, 2025 at 3:40 PM
This #Thanksgiving season, we want to thank everyone who has made a difference for nature this year.
With your help, we’ve won critical protections for wildlife and wild places to benefit us all.
🌎 Check out our new 2025 #WCSImpact Report: www.wcs.org/about-us/imp...
With your help, we’ve won critical protections for wildlife and wild places to benefit us all.
🌎 Check out our new 2025 #WCSImpact Report: www.wcs.org/about-us/imp...
Looking forward to joining colleagues at the 🇬🇧🇧🇷 UK–Brazil International One Health Symposium next week. A critical moment to connect science, policy & practice across regions as we tackle climate change, biodiversity loss, AMR & zoonotic risks together eu.eventscloud.com/website/1834... #OneHealth
November 21, 2025 at 4:52 PM
Looking forward to joining colleagues at the 🇬🇧🇧🇷 UK–Brazil International One Health Symposium next week. A critical moment to connect science, policy & practice across regions as we tackle climate change, biodiversity loss, AMR & zoonotic risks together eu.eventscloud.com/website/1834... #OneHealth
Reposted by Chris Walzer
We can’t let the saiga’s remarkable recovery be undone by the horn trade.
That’s why we oppose Proposal 3 at #CITESCOP20 to lift the zero-export quota for wild saiga from Kazakhstan and allow international commercial trade in saiga horns. bit.ly/4pC2Ri3 🌏
That’s why we oppose Proposal 3 at #CITESCOP20 to lift the zero-export quota for wild saiga from Kazakhstan and allow international commercial trade in saiga horns. bit.ly/4pC2Ri3 🌏
November 18, 2025 at 6:05 PM
We can’t let the saiga’s remarkable recovery be undone by the horn trade.
That’s why we oppose Proposal 3 at #CITESCOP20 to lift the zero-export quota for wild saiga from Kazakhstan and allow international commercial trade in saiga horns. bit.ly/4pC2Ri3 🌏
That’s why we oppose Proposal 3 at #CITESCOP20 to lift the zero-export quota for wild saiga from Kazakhstan and allow international commercial trade in saiga horns. bit.ly/4pC2Ri3 🌏
Reposted by Chris Walzer
STATEMENT: #COP30 is a moment to recognize nature, ecological integrity (or the health of ecosystems), and Indigenous leadership as critical parts of the climate agenda.
🌎 Read our statement: bit.ly/47L3BKg
🌎 Read our statement: bit.ly/47L3BKg
November 11, 2025 at 2:48 PM
STATEMENT: #COP30 is a moment to recognize nature, ecological integrity (or the health of ecosystems), and Indigenous leadership as critical parts of the climate agenda.
🌎 Read our statement: bit.ly/47L3BKg
🌎 Read our statement: bit.ly/47L3BKg
Reposted by Chris Walzer
📢Today, the Intergovernmental Working Group (IGWG) for the #pandemictreaty started its 3rd meeting to develop a Pathogen Access and Benefits Sharing (PABS) Annex. The meeting takes place on 3-7 Nov in Geneva.
🧵
🧵
November 3, 2025 at 4:01 PM
📢Today, the Intergovernmental Working Group (IGWG) for the #pandemictreaty started its 3rd meeting to develop a Pathogen Access and Benefits Sharing (PABS) Annex. The meeting takes place on 3-7 Nov in Geneva.
🧵
🧵
Reposted by Chris Walzer
Today is One Health Day! Register below to hear how Indigenous and place-based knowledge and community-led wildlife surveillance advance our understanding of the interconnected health of animals, humans, and ecosystems.
@wcs.org
When: Wednesday Nov. 5 @ 10 am ET / 9 pm ICT
zoom.us/meeting/regi...
@wcs.org
When: Wednesday Nov. 5 @ 10 am ET / 9 pm ICT
zoom.us/meeting/regi...
November 3, 2025 at 1:15 PM
Today is One Health Day! Register below to hear how Indigenous and place-based knowledge and community-led wildlife surveillance advance our understanding of the interconnected health of animals, humans, and ecosystems.
@wcs.org
When: Wednesday Nov. 5 @ 10 am ET / 9 pm ICT
zoom.us/meeting/regi...
@wcs.org
When: Wednesday Nov. 5 @ 10 am ET / 9 pm ICT
zoom.us/meeting/regi...
Reposted by Chris Walzer
It's #OneHealthDay! Protecting and restoring nature's integrity is essential to addressing today's polycrisis, which includes biodiversity loss, the climate emergency, and systemic health threats. @wcs.org
#OneHealth
#OneHealth
November 3, 2025 at 1:46 PM
It's #OneHealthDay! Protecting and restoring nature's integrity is essential to addressing today's polycrisis, which includes biodiversity loss, the climate emergency, and systemic health threats. @wcs.org
#OneHealth
#OneHealth
Reposted by Chris Walzer
A new bat coronavirus discovered in Brazil confirms what we already knew: nature handles furin cleavage sites just fine.
Lab leakers, don’t worry, you've got the track record to pivot seamlessly to a career in creative fiction writing.
Quick update on the news:
open.substack.com/pub/protagon...
Lab leakers, don’t worry, you've got the track record to pivot seamlessly to a career in creative fiction writing.
Quick update on the news:
open.substack.com/pub/protagon...
The Brazilian clue
Or: another L for lab leak believers
open.substack.com
October 31, 2025 at 9:40 PM
A new bat coronavirus discovered in Brazil confirms what we already knew: nature handles furin cleavage sites just fine.
Lab leakers, don’t worry, you've got the track record to pivot seamlessly to a career in creative fiction writing.
Quick update on the news:
open.substack.com/pub/protagon...
Lab leakers, don’t worry, you've got the track record to pivot seamlessly to a career in creative fiction writing.
Quick update on the news:
open.substack.com/pub/protagon...
Reposted by Chris Walzer
There is a very good reply to that OpEd by @philippmarkolin.bsky.social in today's Letters to the Editor in STAT
www.statnews.com/2025/10/25/s...
www.statnews.com/2025/10/25/s...
October 25, 2025 at 12:51 PM
There is a very good reply to that OpEd by @philippmarkolin.bsky.social in today's Letters to the Editor in STAT
www.statnews.com/2025/10/25/s...
www.statnews.com/2025/10/25/s...
Reposted by Chris Walzer
When I say that Trump and his petrostate/plutocrat overlords are a threat to humanity, I mean it
#ScienceUnderSiege
www.politico.com/news/2025/10...
#ScienceUnderSiege
www.politico.com/news/2025/10...
Trump takes aim at European climate law after killing UN shipping fee
Once again the United States is using its economic might to pressure other countries to back down from an effort to limit greenhouse gas pollution.
www.politico.com
October 23, 2025 at 3:22 PM
When I say that Trump and his petrostate/plutocrat overlords are a threat to humanity, I mean it
#ScienceUnderSiege
www.politico.com/news/2025/10...
#ScienceUnderSiege
www.politico.com/news/2025/10...
Biodiversity isn’t just an environmental issue — it’s a health issue. We argue that ignoring biodiversity loss undermines efforts to protect public health. Protecting nature is a primary medical intervention. 👉 www.statnews.com/2025/10/20/b...
#OneHealth #Biodiversity #PublicHealth @wcs.org
#OneHealth #Biodiversity #PublicHealth @wcs.org
Climate and health strategies must address the biodiversity crisis
Safeguarding biodiversity is not simply an environmental concern but a foundational element of preventive and clinical care.
www.statnews.com
October 22, 2025 at 8:43 AM
Biodiversity isn’t just an environmental issue — it’s a health issue. We argue that ignoring biodiversity loss undermines efforts to protect public health. Protecting nature is a primary medical intervention. 👉 www.statnews.com/2025/10/20/b...
#OneHealth #Biodiversity #PublicHealth @wcs.org
#OneHealth #Biodiversity #PublicHealth @wcs.org
Poor data management has long hindered wildlife health surveillance and One Health integration. The @wcs.org led HAWK database enables harmonized data sharing across sectors–a common good for One Health tinyurl.com/498np55z
#OneHealth #DataForGood #wildlifehealth #surveillance
#OneHealth #DataForGood #wildlifehealth #surveillance
A community-of-practice-built database to support the implementation and operation of national and subnational wildlife health surveillance systems
Historically, poor data management has hampered the establishment and operation of wildlife health surveillance (WHS) systems and limited the integrat…
tinyurl.com
October 16, 2025 at 9:49 AM
Poor data management has long hindered wildlife health surveillance and One Health integration. The @wcs.org led HAWK database enables harmonized data sharing across sectors–a common good for One Health tinyurl.com/498np55z
#OneHealth #DataForGood #wildlifehealth #surveillance
#OneHealth #DataForGood #wildlifehealth #surveillance
Congratulations John 🙌
At #IUCNcongress, WCS’s Dr. John G. Robinson was awarded IUCN Honorary Membership, the Union's highest distinction.
“Through his leadership at WCS and his lifelong engagement with IUCN, John has helped define the modern conservation movement,” said WCS President and CEO Adam Falk.
🌍 bit.ly/3WBlsxU
“Through his leadership at WCS and his lifelong engagement with IUCN, John has helped define the modern conservation movement,” said WCS President and CEO Adam Falk.
🌍 bit.ly/3WBlsxU
October 14, 2025 at 7:55 PM
Congratulations John 🙌
Reposted by Chris Walzer
We cannot afford to reject tools that could help safeguard both people and nature.
At #IUCNcongress, after intense debate, IUCN members just adopted Motion 87, which establishes a responsible, science-based policy framework on synthetic biology.
🌍 newsroom.wcs.org/News-Release...
At #IUCNcongress, after intense debate, IUCN members just adopted Motion 87, which establishes a responsible, science-based policy framework on synthetic biology.
🌍 newsroom.wcs.org/News-Release...
IUCN Members Choose Science and Ethics in Landmark Vote on Synthetic Biology
ABU DHABI, October 14 , 2025 — The Wildlife Conservation Society (WCS) today hailed the adoption of Motion 87, supporting the responsible, evidence-based use of synthetic biology, at the IUCN World Co...
newsroom.wcs.org
October 14, 2025 at 5:38 PM
We cannot afford to reject tools that could help safeguard both people and nature.
At #IUCNcongress, after intense debate, IUCN members just adopted Motion 87, which establishes a responsible, science-based policy framework on synthetic biology.
🌍 newsroom.wcs.org/News-Release...
At #IUCNcongress, after intense debate, IUCN members just adopted Motion 87, which establishes a responsible, science-based policy framework on synthetic biology.
🌍 newsroom.wcs.org/News-Release...
Reposted by Chris Walzer
I don’t know who needs to hear this but the CDC is being eviscerated right now. America is not going to have any kind of outbreak response capacity after tonight. Americans’ health data is no longer secure. Say goodbye to federal public health in any capacity. It’s a disaster. We won’t recover.
October 11, 2025 at 3:05 AM
I don’t know who needs to hear this but the CDC is being eviscerated right now. America is not going to have any kind of outbreak response capacity after tonight. Americans’ health data is no longer secure. Say goodbye to federal public health in any capacity. It’s a disaster. We won’t recover.
Reposted by Chris Walzer
At the #IUCNCongress starting this week in Abu Dhabi, we are supporting Motion 87, which establishes a responsible, science-based policy framework on synthetic biology. bit.ly/4n1h1aM 🌍
WCS Calls on IUCN Congress To Support Responsible, Science-Based Policy on Synthetic Biology
Abu Dhabi, Oct. 3, 2025 -- The Wildlife Conservation Society (WCS) today urged delegates to the upcoming IUCN World Conservation Congress in Abu Dhabi to support Motion 87, which establishes a respons...
bit.ly
October 6, 2025 at 12:25 PM
At the #IUCNCongress starting this week in Abu Dhabi, we are supporting Motion 87, which establishes a responsible, science-based policy framework on synthetic biology. bit.ly/4n1h1aM 🌍
Reposted by Chris Walzer
Our recently launched 2025–2030 Coral Reef Conservation Strategy is a plan to conserve the most climate-resilient reefs. bit.ly/4n0C3WV
It’s the work of 70+ experts in 18 countries, linking our science, partnerships, policy, and community work into a shared vision.
It’s the work of 70+ experts in 18 countries, linking our science, partnerships, policy, and community work into a shared vision.
October 10, 2025 at 6:08 AM
Our recently launched 2025–2030 Coral Reef Conservation Strategy is a plan to conserve the most climate-resilient reefs. bit.ly/4n0C3WV
It’s the work of 70+ experts in 18 countries, linking our science, partnerships, policy, and community work into a shared vision.
It’s the work of 70+ experts in 18 countries, linking our science, partnerships, policy, and community work into a shared vision.
Reposted by Chris Walzer
Rangers are on the frontlines of conservation, protecting our natural and cultural heritage for the benefit of all.
Today at #IUCNcongress, with our partners, we proudly reaffirmed our commitment to the Universal Ranger Support Alliance, which advocates for and supports rangers around the world. 🌍
Today at #IUCNcongress, with our partners, we proudly reaffirmed our commitment to the Universal Ranger Support Alliance, which advocates for and supports rangers around the world. 🌍
October 11, 2025 at 7:05 AM
Rangers are on the frontlines of conservation, protecting our natural and cultural heritage for the benefit of all.
Today at #IUCNcongress, with our partners, we proudly reaffirmed our commitment to the Universal Ranger Support Alliance, which advocates for and supports rangers around the world. 🌍
Today at #IUCNcongress, with our partners, we proudly reaffirmed our commitment to the Universal Ranger Support Alliance, which advocates for and supports rangers around the world. 🌍
Reposted by Chris Walzer
Enhanced monitoring, early detection, rapid response. Critical to addressing Highly Pathogenic Avian Influenza.
Today at #IUCNcongress, WCS’s Dr. Sarah Olson spoke about WCS’s experience addressing HPAI in places like Peru and Cambodia and the need for sustainable wildlife health surveillance. 🌍
Today at #IUCNcongress, WCS’s Dr. Sarah Olson spoke about WCS’s experience addressing HPAI in places like Peru and Cambodia and the need for sustainable wildlife health surveillance. 🌍
October 9, 2025 at 4:14 PM
Enhanced monitoring, early detection, rapid response. Critical to addressing Highly Pathogenic Avian Influenza.
Today at #IUCNcongress, WCS’s Dr. Sarah Olson spoke about WCS’s experience addressing HPAI in places like Peru and Cambodia and the need for sustainable wildlife health surveillance. 🌍
Today at #IUCNcongress, WCS’s Dr. Sarah Olson spoke about WCS’s experience addressing HPAI in places like Peru and Cambodia and the need for sustainable wildlife health surveillance. 🌍